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BS ISO 11898-1:2015

Current

Current

The latest, up-to-date edition.

Road vehicles. Controller area network (CAN) Data link layer and physical signalling

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

31-01-2016

Foreword
Introduction
1 Scope
2 Conformance
3 Normative references
4 Terms and definitions
5 Symbols and abbreviated term
6 Basic concepts of CAN
7 Layered architecture of CAN
8 Description of LLC sub-layer
9 Interface between LLC and MAC
10 Description of MAC sub-layer
11 PL specification
12 Description of supervisor FCE
Annex A (informative) - Additional Information
Bibliography

Defines the characteristics of setting up an interchange of digital information between modules implementing the CAN data link layer.

This part of ISO11898 specifies the characteristics of setting up an interchange of digital information between modules implementing the CAN data link layer. Controller area network is a serial communication protocol, which supports distributed real-time control and multiplexing for use within road vehicles and other control applications. This part of ISO11898 specifies the Classical CAN frame format and the newly introduced CAN Flexible Data Rate Frame format. The Classical CAN frame format allows bit rates up to 1Mbit/s and payloads up to 8byte per frame. The Flexible Data Rate frame format allows bit rates higher than 1Mbit/s and payloads longer than 8byte per frame. This part of ISO11898 describes the general architecture of CAN in terms of hierarchical layers according to the ISO reference model for open systems interconnection (OSI) according to ISO/IEC7498‑1 . The CAN data link layer is specified according to ISO/IEC8802‑2 and ISO/IEC8802‑3 . This part of ISO11898 contains detailed specifications of the following (see Figure2): logical link control sub-layer; medium access control sub-layer; physical coding sub-layer. There are three implementation options. They are the following: support of the Classical CAN frame format only, not tolerating the Flexible Data Rate frame format; support of the Classical CAN frame format and tolerating the Flexible Data Rate frame format; support of the Classical CAN frame format and the Flexible Data Rate frame format. The last option is recommended to be implemented for new designs. NOTE Implementations of the first option can communicate with implementations of the third option only as long as the Flexible Data Rate frame format is not used; otherwise, Error Frames are generated. There are opportunities to run implementations of the first option also in CAN networks using the Flexible Data Rate frame format, but these are not in the scope of this part of ISO11898 .

Committee
AUE/16
DevelopmentNote
Supersedes 15/30283339 DC. (01/2016)
DocumentType
Standard
Pages
78
PublisherName
British Standards Institution
Status
Current
Supersedes

Standards Relationship
ISO 11898-1:2015 Identical

ISO/IEC 7498-1:1994 Information technology Open Systems Interconnection Basic Reference Model: The Basic Model
ISO 7637-3:2016 Road vehicles — Electrical disturbances from conduction and coupling — Part 3: Electrical transient transmission by capacitive and inductive coupling via lines other than supply lines
ISO 11992-1:2003 Road vehicles Interchange of digital information on electrical connections between towing and towed vehicles Part 1: Physical and data-link layers
ISO/IEC 8802-2:1998 Information technology Telecommunications and information exchange between systems Local and metropolitan area networks Specific requirements Part 2: Logical link control
ISO/IEC/IEEE 8802-3:2017 Information technology Telecommunications and information exchange between systems Local and metropolitan area networks Specific requirements Part 3: Standard for Ethernet

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